Your source for forecasting tools, software, and books since 1993

"Thank you for actually penning these books. They are a wonderful review of the concepts without the excessive (but necessary) amount of math behind them. I wish they had been recommended as supplements in both my undergrad and graduate years."

— Josh Tobias, 2017

"I have used Digital Atmosphere for quite sometime and consider it to be one of the most straightforward, comprehensive, and operationally useful programs on my server. I have found it to be invaluable for my day-to-day analyses and forecasting as well as my ongoing research. Tim is also extremely helpful and absolutely indispensable when it comes to locating scripts, the best datasets, and even professional contacts to help make any organization as productive as possible."

Chris Robbins, iWeatherNet

"The quality of your products is second to none."

— C. Brian Batey

"Thanks Tim for your quick response (we like that at FedEx) about our Professional Versions! As we're a 24/7 operation, we're look forward to augmenting our present weather system with Digital Atmosphere."

— Mel Bradley, FedEx Operations

"Wow. Your books are incredibly technical and useful. I consider myself a very amateur weather watcher and feel that I am already ahead of the curve. Thank you."

— Terry W. Taylor

"The NEXRAD support is truly awesome and easy to use - and the other feature just really tops it off. This is about my sixth email tonight - the other five being to other spotters in the area telling them they just have to download Digital Atmosphere and give it a serious going over."

— David Cashion

"I'm really looking forward to the next phase of Digital Atmosphere Workstation. I'm sure it will be as excellent as all your other products."

— Simon Keeling
Weather Consultancy Services, UK

"I run and manage a number of festival type events and Digital Atmosphere is able to produce charts that I can use for normal weather forecasting with a fair degree of accuracy and in particular wind speed and direction that is crucial to many of events."

— Robert Connolly, GI7IVX

"The archive data arrived today. WOW! What an amazing set of data! Thanks again for all the extras that you included as well!"

— Bryan Bollman, IA

"We do run GEMPAK and all the Unidata software also, but your package has numerous advantages, the biggest being Windows."

— Anonymous

"I am very impressed with what you have done. I have already shown several people at work your site. I plan on talking to our MIC [Meteorologist In Charge] soon to see if we can get Digital Atmosphere in the office to complement/supplement AWIPS."

— Ken Simosko, NWS, Pocatello

"This new version is even better than the older version which was awesome! Your programming skills and met knowledge amaze me!"

— Chris Kincaid


In stock

Forecasters Reference Workbook
Tim Vasquez

2016 / 234 pp. / 214 blank charts
$38.95 / ISBN-13: 978-0-9969423-2-4

8 x 10" / Perfect bound / Color / Glossy color cover

Please note this is a reference collection containing numerous reference charts and diagrams, including blank charts. It is NOT a textbook or guidebook. Thanks!

Released in late 2016, Forecasters Reference Workbook provides operational forecasters with essential charts they need to complete the analysis, diagnosis, and forecast process. In today's meteorological community, the vast majority of information is gathered by computer programs and websites. These don't have the degree of fine detail that the vellum poster-size maps offered from years ago.

In this volume we collect all of the most essential charts in an economical color book and provide multiple copies in blank form. These include three forms of Skew-T soundings, along with hodographs, movement nomograms, and radar elevation tables. These pages are meant to be drawn in, reused, or torn out as needed. They can also be used for classroom assignments.

This book has been designed by a veteran forecaster in the operational meteorological community for use by other forecasters. And for hobbyists and storm chasers, it provides a useful reference and instructional tool.

Forecasters Reference Workbook is also the companion to our 2017 title, Instability, Skew-T & Hodograph Handbook, and will help you work through its material or apply what you've learned to your forecasts.


1 Skew T log P diagram, 1000-200 mb (100 sheets)
101 Skew T log P diagram, convective situation, low level (1000-500 mb) (32 sheets)
133 Skew T log P diagram, full chart (1000-100 mb) (8 sheets)

142 Hodograph reference chart (graphical diagram for Bunkers Technique and computation of storm-relative helicity)
143 Hodograph (32 sheets)

177 Gamma mesoscale motion workchart (8 sheets)
185 Beta mesoscale motion workchart (6 sheets)
191 Alpha mesoscale motion workchart (6 sheets)

197 United States and Southern Canada (17 sheets)

216 WSR-88D range/height diagram (5 sheets)

About the author

Tim Vasquez began a meteorology career in 1984 writing the weather page for a Dallas newspaper. From 1989 to 1998 he was an Air Force meteorologist and worked at two television stations. He developed the Digital Atmosphere weather analysis software system in use worldwide. Residing in Austin, Texas, he is a software programmer, a consulting meteorologist, and a columnist for Weatherwise magazine.